Anaesthetic practice and postoperative pulmonary complications

Area of Science:

• Anesthesiology
• Pulmonary Medicine
• Surgical Risk Assessment

Background:

• Postoperative pulmonary complications (PPCs) are a significant concern following surgery.
• Identifying risk factors is crucial for improving patient outcomes.
• Anesthetic technique and patient-specific factors play a role in PPC development.

Purpose of the Study:

• To identify risk factors for postoperative pulmonary complications.
• To evaluate the influence of anesthetic technique, including muscle relaxants and regional vs. general anesthesia.
• To assess the impact of patient age, COPD, surgery type, and anesthesia duration on PPCs.

Main Methods:

• Retrospective analysis of 7,029 patients undergoing various surgeries.
• Comparison of PPC rates between general anesthesia and regional anesthesia.
• Evaluation of muscle relaxants (pancuronium vs. atracurium) and their association with PPCs.
• Logistic regression analysis to identify independent risk factors.

Main Results:

• Overall PPC rate was 4.1% (290/7029 patients).
• General anesthesia had a higher PPC rate (4.5%) compared to regional anesthesia (1.9%).
• Pancuronium use in major surgery was associated with higher PPCs (12.7%) than atracurium (5.1%), particularly in long procedures.
• Major orthopedic surgery under general anesthesia showed a significantly higher PPC incidence (11.5%) than with regional anesthesia (3.6%).

Conclusions:

• Regional anesthesia is associated with a lower risk of PPCs compared to general anesthesia.
• Long-duration procedures using pancuronium increase the risk of PPCs.
• Anesthetic management, including choice of muscle relaxant and technique, is a critical factor in preventing PPCs.